diff --git a/ble/services/EddystoneConfigService.h b/ble/services/EddystoneConfigService.h
index 19a8980..977edac 100644
--- a/ble/services/EddystoneConfigService.h
+++ b/ble/services/EddystoneConfigService.h
@@ -215,7 +215,7 @@ public:
         DBG("Setting Default TLM Data, version = %d, advPeriodInMind= %f", tlmVersionIn, advPeriodInSec);
         defaultTlmVersion   = tlmVersionIn;
         TlmBatteryVoltage   = 0;
-        TlmBeaconTemp       = 0;
+        TlmBeaconTemp       = 0x8000;
         TlmPduCount         = 0;
         TlmTimeSinceBoot    = 0;
         defaultTlmAdvPeriod = advPeriodInSec;
diff --git a/ble/services/EddystoneService.h b/ble/services/EddystoneService.h
index 10ae043..55c7172 100644
--- a/ble/services/EddystoneService.h
+++ b/ble/services/EddystoneService.h
@@ -237,7 +237,7 @@ public:
     void setTLMFrameData(uint8_t  version        = 0,
                          float    advPeriod      = 60.0f,
                          uint16_t batteryVoltage = 0,
-                         uint16_t beaconTemp     = 0,
+                         uint16_t beaconTemp     = 0x8000,
                          uint32_t pduCount       = 0,
                          uint32_t timeSinceBoot  = 0) {
         if (0.0f == advPeriod) {